7.4.1 - Junctions of BJT
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Practice Questions
Test your understanding with targeted questions
What are the three main components of a BJT?
💡 Hint: Think about the basic structure of the transistor.
What happens to the base-emitter junction under normal operating conditions?
💡 Hint: Consider the direction of voltage applied.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What type of bias occurs at the base-emitter junction during normal operation?
💡 Hint: Consider the necessary conditions for current flow.
Is the collector junction typically forward biased during normal operation?
💡 Hint: Think about the controlling conditions in the BJT circuit.
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Challenge Problems
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Given a certain base current, calculate the expected collector current using the BJT current gain (β). If the base current is 20 µA and β is 100, what is the collector current?
💡 Hint: Recall the collector current calculation formula based on the base current and transistor gain.
A BJT is connected in a circuit where the base-emitter voltage is 0.7V. Determine if this is in forward or reverse bias and justify your answer.
💡 Hint: Consider the typical threshold voltage for silicon-based BJTs.
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